Nimbus-7 SMMR Polar Gridded Radiances and Sea Ice Concentrations  View Catalog Page
Metadata Entity Set Information:
Language:
eng; usa
Character Set:
Value: UTF8
CodeList: MD_CharacterSetCode
Hierarchy Level:
Value: dataset
CodeList: MD_ScopeCode
Hierarchy Level Name:
Nimbus-7 SMMR Polar Gridded Radiances and Sea Ice Concentrations
Contact:
Responsible Party:
Individual Name: NSIDC User Services
Organization Name: National Snow and Ice Data Center
Contact:
Contact Phone:
Contact Voice Telephone: 1 303 492-6199 x
Contact Address:
Delivery Point: CIRES, 449 UCB
City: Boulder
Administrative Area: CO
Postal Code: 80309-0449
Country: USA
Email: nsidc@nsidc.org
Contact Online Resources:
Website: http://nsidc.org
Contact Role:
Value: pointOfContact
CodeList: CI_RoleCode
Date Stamp:
2013-05-22
Metadata Standard Name:
ISO 19115 Geographic Information - Metadata First Edition
Metadata Standard Version:
ISO 19115:2003
Dataset URI:
http://nsidc.org/data/nsidc-0007.html
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Data Identification Information:
Citation:
Citation Information:
Title: Nimbus-7 SMMR Polar Gridded Radiances and Sea Ice Concentrations
Date:
Date: 2006
Date Type:
Value: publication
CodeList: CI_DateTypeCode
Edition Date: 2006-08-03
Identifier: NSIDC-0007
Cited Responsible Party: Responsible Party:
Individual Name: NSIDC DAAC User Services
Organization Name: NASA DAAC at the National Snow and Ice Data Center
Contact:
Contact Phone:
Contact Voice Telephone: 1 303 492-6199
Contact Address:
Delivery Point: National Snow and Ice Data Center
City: Boulder
Administrative Area: CO
Postal Code: 80309-0449
Country: USA
Email: nsidc@nsidc.org
Contact Online Resources:
Website: http://nsidc.org/daac/index.html
Contact Role:
Value: custodian
CodeList: CI_RoleCode
Responsible Party:
Individual Name: NSIDC User Services
Organization Name: National Snow and Ice Data Center
Contact:
Contact Phone:
Contact Voice Telephone: 1 303 492-6199
Contact Address:
Delivery Point: National Snow and Ice Data Center
City: Boulder
Administrative Area: CO
Postal Code: 80309-0449
Country: USA
Email: nsidc@nsidc.org
Contact Online Resources:
Website: http://nsidc.org
Contact Role:
Value: custodian
CodeList: CI_RoleCode
Abstract:
This data set contains gridded brightness temperatures and sea ice concentrations for both polar regions. It spans the period from October 1978 through August 1987, when the Nimbus-7 SMMR scanner was turned off. The data were collected every other day at 6.60, 10.69, 18.00, 21.00 and 37.00 GHz. Due to spacecraft power limitations, the scanner operated only on alternate days. There are usually at least foutreen days of coverage per month, although major data gaps occurred during the month of August. In August 1982, the following days are missing for both polar regions: 4th, 8th, and 16th; in August 1984, the 13th through the 23rd are missing for both polar regions; and in August 1985, the 6th through 8th are missing for the Southern Hemisphere.
Brightness temperature and sea ice concentration grids have 25 x 25 km grid elements in polar stereographic projection. Volume 7 contains all SMMR sea ice concentrations for both polar regions, plus five months of brightness temperature grids for the North polar region.
Brightness temperature grids are stored as 16-bit integers, one day of brightness temperature data is 0.27 mbytes for the North polar region, 0.21 mbytes for the South. Ice grids are stored as 8-bit integers. Files contain 136192 bytes and 104912 bytes for the North and South respectively. The NASA Team Algorithm (Cavalieri et al. 1984, Gloersen and Cavalieri 1986) was used to calculate ice concentrations from the brightness temperatures. The data were produced by Dr. P. Gloersen, NASA/GSFC, Oceans and Ice Branch, and are available via FTP.
Notice to Data Users: SMMR TCT tapes comprised the input data set, unlike the SMMR Digital Media product distributed by NSIDC in 1979.
Purpose:
Scientific Research
Credit:
The following example shows how to cite the use of this data set in a publication. For more information, see our Use and Copyright Web page.
Per Gloersen. 2006. Nimbus-7 SMMR Polar Gridded Radiances and Sea Ice Concentrations. [indicate subset used]. Boulder, Colorado USA: National Snow and Ice Data Center.
Status:
Value: complete
CodeList: MD_ProgressCode
Point of Contact:
Responsible Party:
Individual Name: NSIDC User Services
Organization Name: National Snow and Ice Data Center
Contact:
Contact Phone:
Contact Voice Telephone: 1 303 492-6199 x
Contact Address:
Delivery Point: CIRES, 449 UCB
City: Boulder
Administrative Area: CO
Postal Code: 80309-0449
Country: USA
Email: nsidc@nsidc.org
Contact Role:
Value: pointOfContact
CodeList: CI_RoleCode
Responsible Party:
Individual Name: Per Gloersen
Contact:
Contact Phone:
Contact Voice Telephone: 1 301 614-5710
Contact Address:
Delivery Point: Laboratory for Hydrospheric Processes
City: Greenbelt
Administrative Area: MD
Postal Code: 20771
Country: USA
Email: per.gloersen@gsfc.nasa.gov
Contact Role:
Value: principalInvestigator
CodeList: CI_RoleCode
Responsible Party:
Individual Name: Donald J. Cavalieri
Organization Name: NASA Goddard Space Flight Center
Contact:
Contact Phone:
Contact Voice Telephone: 1 301 614-5901 x
Contact Address:
Delivery Point: NASA/GSFC
City: Greenbelt
Administrative Area: MD
Postal Code: 20771
Country: USA
Email: Donald.J.Cavalieri@nasa.gov
Contact Role:
Value: principalInvestigator
CodeList: CI_RoleCode
Maintenance Information:
Maintenance and Update Frequency:
Value: asNeeded
CodeList: MD_MaintenanceFrequencyCode
Update Scope:
Value: dataset
CodeList: MD_ScopeCode
Value: series
CodeList: MD_ScopeCode
Value: attribute
CodeList: MD_ScopeCode
Contact:
Responsible Party:
Individual Name: NSIDC User Services
Organization Name: National Snow and Ice Data Center
Contact:
Contact Phone:
Contact Voice Telephone: 1 303 492-6199 x
Contact Address:
Delivery Point: CIRES, 449 UCB
City: Boulder
Administrative Area: CO
Postal Code: 80309-0449
Country: USA
Email: nsidc@nsidc.org
Contact Online Resources:
Website: http://nsidc.org
Contact Role:
Value: pointOfContact
CodeList: CI_RoleCode
Descriptive Keywords:
Keywords
Keyword: Continent > North America > Canada > Hudson Bay
Keyword: Geographic Region > Polar
Keyword: Ocean > Arctic Ocean > Baffin Bay
Keyword: Ocean > Arctic Ocean > Beaufort Sea
Keyword: Ocean > Arctic Ocean > Chukchi Sea
Keyword: Ocean > Atlantic Ocean > North Atlantic Ocean
Keyword: Ocean > Atlantic Ocean > North Atlantic Ocean > Greenland Sea
Keyword: Ocean > Pacific Ocean > North Pacific Ocean > Bering Sea
Keyword: Ocean > Southern Ocean > Amundsen Sea
Keyword Type:
Value: place
CodeList: MD_KeywordTypeCode
Keyword Thesaurus: Citation Information:
Title: NASA / GCMD Location Keywords
Date:
Date: 2008-02-05
Date Type:
Value: revision
CodeList: CI_DateTypeCode
Keywords
Keyword: EARTH SCIENCE > Cryosphere > Sea Ice > Ice Extent
Keyword: EARTH SCIENCE > Cryosphere > Sea Ice > Sea Ice Concentration
Keyword: EARTH SCIENCE > Cryosphere > Snow/Ice > Ice Extent
Keyword: EARTH SCIENCE > Oceans > Sea Ice > Ice Extent
Keyword: EARTH SCIENCE > Oceans > Sea Ice > Sea Ice Concentration
Keyword: EARTH SCIENCE > Spectral/Engineering > Microwave > Brightness Temperature
Keyword: EARTH SCIENCE > Terrestrial Hydrosphere > Snow/Ice > Ice Extent
Keyword Type:
Value: discipline
CodeList: MD_KeywordTypeCode
Keyword Thesaurus: Citation Information:
Title: NASA / GCMD Science Keywords
Date:
Date: 2008-02-05
Date Type:
Value: revision
CodeList: CI_DateTypeCode
Keywords
Keyword: EOSDIS > Earth Observing System Data Information System
Keyword: ESIP > Earth Science Information Partners Program
Keyword Type:
Value: theme
CodeList: MD_KeywordTypeCode
Keyword Thesaurus: Citation Information:
Title: NASA / GCMD Project Keywords
Date:
Date: 2008-01-24
Date Type:
Value: revision
CodeList: CI_DateTypeCode
Keywords
Keyword: Antarctic
Keyword: Arctic
Keyword: CD-ROM
Keyword: DAAC
Keyword: EOSDIS
Keyword: Global Change
Keyword: Ice
Keyword: NSIDC DAAC
Keyword: Passive Microwave
Keyword: Polar
Keyword: Radiance
Keyword: Remote Sensing
Keyword: Sea Ice Concentration
Keyword: Sea Ice Extent
Keyword: Snow
Keyword Type:
Value: theme
CodeList: MD_KeywordTypeCode
Dataset Constraints:
Legal Constraints:
Access Constraints:
Value: otherRestrictions
CodeList: MD_RestrictionCode
Use Constraints:
Value: otherRestrictions
CodeList: MD_RestrictionCode
Other Constraints:
Access Constraints : none
Use Constraints : none
Language:
eng; usa
Character Set:
Value: UTF8
CodeList: MD_CharacterSetCode
Extent Information:
Spatial Temporal Extent:
Geographic Element:
Bounding Coordinates:
Westbound Longitude: -180
Eastbound Longitude: 180
Southbound Latitude: -90
Northbound Latitude: 90
Temporal Element:
Time Period:
Begin Position: 19781025
End Position: 19870820
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Distribution Information:
Distributor Information:
Distributor Contact:
Responsible Party:
Individual Name: NSIDC DAAC User Services
Organization Name: NASA DAAC at the National Snow and Ice Data Center
Contact:
Contact Phone:
Contact Voice Telephone: 1 303 492-6199
Contact Address:
Delivery Point: National Snow and Ice Data Center
City: Boulder
Administrative Area: CO
Postal Code: 80309-0449
Country: USA
Email: nsidc@nsidc.org
Contact Online Resources:
Website: http://nsidc.org/daac/index.html
Contact Role:
Value: custodian
CodeList: CI_RoleCode
Responsible Party:
Individual Name: NSIDC User Services
Organization Name: National Snow and Ice Data Center
Contact:
Contact Phone:
Contact Voice Telephone: 1 303 492-6199
Contact Address:
Delivery Point: National Snow and Ice Data Center
City: Boulder
Administrative Area: CO
Postal Code: 80309-0449
Country: USA
Email: nsidc@nsidc.org
Contact Online Resources:
Website: http://nsidc.org
Contact Role:
Value: custodian
CodeList: CI_RoleCode
Distribution Format(s):
Data File Format:
Specification: FTP
Digital Transfer Options:
Online Transfer Options:
Online Resources:
Linkage: ftp://sidads.colorado.edu/pub/DATASETS/nsidc0007_smmr_radiance_seaice_v01/
Description: Data Access URL
Function:
Value: download
CodeList: CI_OnLineFunctionCode
Linkage: http://nsidc.org/data/docs/daac/nsidc0007_smmr_tbs_seaice.gd.html
Description: Documentation URL
Function:
Value: information
CodeList: CI_OnLineFunctionCode
Offline Transfer Options:
Offline Resources:
Name:
Value: onLine
CodeList: MD_MediumNameCode
Medium Name: FTP
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Data Acquisition Information:
Instrument Information:
Instrument:
Name: RADIOMETERS
Type: sensor
Instrument:
Name: SMMR > Scanning Multichannel Microwave Radiometer
Type: sensor
Platform Information:
Platform:
Name: NIMBUS-7
Description: satellite
Instrument: N/A
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